Chapter 1: Return by Railroad

*This is the third and final installment of a trilogy*

Seventh year has started and all of you are now studying hard for your N.E.W.T.s.
Between juggling going after the Golden Grounds, making time for Sebastian, helping Ominis stand up against his family, helping Poppy overcome her fears and figuring out who this mysterious wizard is that seems to be solely after you, will you be able to pass your N.E.W.T.s?

Crossposted on Ao3

TRIGGER WARNINGS FOR:
Mental wards
Murder (plus implied/referenced murder)
Torture
Violence
PTSD (a little bit)
Character death

I also rated it mature for these reasons.